Petitions.by W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Attribute “alt” not allowed on element “a” at this point.
Attribute “title” not allowed on element “svg” at this point.
Attribute “alt” not allowed on element “svg” at this point.
Bad value for attribute “href” on element “a”: Illegal character in query: space is not allowed.
The “aria-labelledby” attribute must point to an element in the same document.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “form” role is unnecessary for element “form”.
This document appears to be written in Russian but the “html” start tag has an empty “lang” attribute. Consider using “lang="ru"” (or variant) instead.
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